THRIFT-136. s/async/oneway/ in misc places

This is mostly an internal-only change.
It affects docstrings, messages, variables, test cases, etc.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@757992 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/compiler/cpp/src/parse/t_function.h b/compiler/cpp/src/parse/t_function.h
index c437d0e..c2de77e 100644
--- a/compiler/cpp/src/parse/t_function.h
+++ b/compiler/cpp/src/parse/t_function.h
@@ -43,7 +43,7 @@
     oneway_(oneway)
   {
     if (oneway_ && !xceptions_->get_members().empty()) {
-      throw std::string("Async methods can't throw exceptions.");
+      throw std::string("Oneway methods can't throw exceptions.");
     }
   }